A look at the weighted underlying holdings of the SPDR S&P Capital Markets ETF (KCE) shows an impressive 18.5% of holdings on a weighted basis have experienced insider buying within the past six months. Start slideshow:10 ETFs With Stocks That Insiders Are Buying Blackrock Incorporated (BLK), which makes up 2.65% of the SPDR S&P Capital Markets ETF (KCE), has seen 3 directors and officers purchase shares in the past six months, according to the recent Form 4 data.